Soft Chair Cushion

ABSTRACT

The present application is directed to a soft chair cushion including: a fixation plate comprising an inner cavity; an air passage opening disposed on a side of the inner cavity; a soft pad including a wrapping layer; an elastic layer wrapped by the soft pad and comprising a spring frame and a plurality of springs installed on the spring frame; a fixing strap disposed between the springs; and a soft layer wrapped by the soft pad and disposed on a top of the elastic layer.

TECHNICAL FIELD

The present application relates to a chair cushion. In particular, itrelates to a soft chair cushion.

BACKGROUND

Chairs are extensively used at work, school and different spheres ofdaily life, earning recognition and popularity of the public. Most chaircushions are manufactured by disposing a soft layer on the top of afixation plate, and wrapping the fixation plate and the soft layerthrough a wrapping layer. The disadvantage is that the breathabilitybetween the fixation plate and the soft layer is unsatisfactory, causingdiscomfort during summer time when the temperature is intolerably high.

SUMMARY

The present application aims at overcoming the deficiency of the priorart, and provides a soft chair cushion that has improved breathabilityand flexibility.

The present application is directed to a soft chair cushion including:

a fixation plate comprising an inner cavity;

an air passage opening disposed on a side of the inner cavity;

a soft pad including a wrapping layer;

an elastic layer wrapped by the soft pad and comprising a spring frameand a plurality of springs installed on the spring frame;

a fixing strap disposed between the springs; and

a soft layer wrapped by the soft pad and disposed on a top of theelastic layer.

The soft layer may be made of soft polyurethane foam.

The spring frame may include a plurality of bolts connected to thefixation plate.

The chair cushion may further include a “#” shaped strengthening ribdisposed in the cavity.

The chair cushion may further include an installation cavity disposed ona bottom of the fixation plate and configured for installing asupporter.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is the front view of the soft chair cushion of an embodiment ofthe present application;

FIG. 2 is the sectional view of the A-A section in FIG. 1;

FIG. 3 is the enlarged view of the portion annotated with “I” in FIG. 2.

DETAILED DESCRIPTION

The soft chair cushion according to the embodiments of the presentapplication will be described below in detail with reference to thedrawings.

The soft chair cushion in FIGS. 1, 2 and 3 includes a fixation plate 5and a soft pad 3. An inner cavity 10 is disposed at the fixation plate5. An air passage opening 13 is disposed on a side of the inner cavity10. The soft pad 3 includes a wrapping layer 4 wrapping an elastic layer12 and a soft layer 11. The elastic layer 12 includes a spring frame 1and a plurality of tensioned springs 2 installed on the spring frame 1.A fixing strap 14 is disposed between the springs 2. The soft layer 11is disposed on the top of the elastic layer 12. The soft layer 11 ismade of soft polyurethane foam.

The spring frame 1 includes a plurality of bolts 6 connected to thefixation plate 5.

“#” shaped strengthening ribs 9 are disposed in the inner cavity 10.

An installation cavity 8 is disposed on a bottom of the fixation plate 5and is configured for installing a supporter. The fixation plate 5includes bolts holes 7 for connection with the supporter by means ofbolts.

The advantages of the present application lie in enhanced breathabilitythrough configuring an inner cavity in the fixation plate, and enhancedsoftness through the soft layer and the elastic layer. The elastic layeris composed of the spring frame and the plurality of tensioned springsinstalled on the spring frame. The soft layer is disposed on the top ofthe elastic layer.

What is claimed is:
 1. A soft chair cushion comprising: a fixation plate(5) comprising an inner cavity (10); an air passage opening (13)disposed on a side of the inner cavity (10); a soft pad (3) comprising awrapping layer (4); an elastic layer (12) wrapped by the soft pad (3)and comprising a spring frame (1) and a plurality of springs (2)installed on the spring frame (1); a fixing strap (14) disposed betweenthe springs; and a soft layer (11) wrapped by the soft pad (3) anddisposed on a top of the elastic layer (12).
 2. A chair cushionaccording to claim 1, wherein: the soft layer (11) is made of softpolyurethane foam.
 3. A chair cushion according to claim 1, wherein: thespring frame (1) comprises a plurality of bolts (6) connected to thefixation plate (5).
 4. A chair cushion according to claim 1, furthercomprising: a “#” shaped strengthening rib (9) disposed in the cavity(10).
 5. A chair cushion according to claim 3, further comprising: a “#”shaped strengthening rib (9) disposed in the cavity (10).
 6. A chaircushion according to claim 1, further comprising: an installation cavity(8) disposed on a bottom of the fixation plate (5) and configured forinstalling a supporter.
 7. A chair cushion according to claim 3, furthercomprising: an installation cavity (8) disposed on a bottom of thefixation plate (5) and configured for installing a supporter.
 8. A chaircushion according to claim 4, further comprising: an installation cavity(8) disposed on a bottom of the fixation plate (5) and configured forinstalling a supporter.